This Technical Specification provides a method for qualification of non-destructive testing (NDT) personnel, procedures, and equipment for specific non-destructive tests conducted in accordance with documented procedures established within a performance-based qualification programme. Implementation of this Technical Specification requires cooperation between applicable industry sector committees (ISCs) and qualification bodies to ensure that specific performance expectations are addressed. The qualification methodology described in this Technical Specification is based upon the ability of a candidate to demonstrate capability in detecting and sizing critical discontinuities equivalent to those to be detected and sized in the performance-based qualification programme as established by the ISC. It is possible that second party (employer-based) qualification and approval (e.g. in accordance with ANSI/ASNT CP-189[3]) or qualification and third party certification (e.g. in accordance with ISO 9712[1] or EN 473[2]), followed by on-the-job training does not provide the required degree of confidence for safety critical inspections, and this Technical Specification provides criteria to assist in preparing an individual for performance-based qualification examinations. Qualification to this Technical Specification is limited to the specific applications, using the specific documented procedure in the performance-based qualification programme.